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Commit 84d656a2836021c3707172707245ba3d87bd54c8

Authored by Stefan Agner
Committed by Scott Wood
1 parent 5dec286b82
Exists in v2017.01-smarct4x and in 34 other branches 8qm-imx_v2020.04_5.4.70_2.3.0, emb_lf_v2022.04, pitx_8mp_lf_v2020.04, smarc-8m-android-10.0.0_2.6.0, smarc-8m-android-11.0.0_2.0.0, smarc-8mp-android-11.0.0_2.0.0, smarc-imx6_v2018.03_4.14.98_2.0.0_ga, smarc-imx7_v2017.03_4.9.11_1.0.0_ga, smarc-imx7_v2018.03_4.14.98_2.0.0_ga, smarc-imx_v2017.03_4.9.11_1.0.0_ga, smarc-imx_v2017.03_4.9.88_2.0.0_ga, smarc-imx_v2017.03_o8.1.0_1.3.0_8m, smarc-imx_v2018.03_4.14.78_1.0.0_ga, smarc-n7.1.2_2.0.0-ga, smarc-rel_imx_4.1.15_2.0.0_ga, smarc_8m-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8m-imx_v2019.04_4.19.35_1.1.0, smarc_8m_00d0-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8mm-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8mm-imx_v2019.04_4.19.35_1.1.0, smarc_8mm-imx_v2020.04_5.4.24_2.1.0, smarc_8mp_lf_v2020.04, smarc_8mq-imx_v2020.04_5.4.24_2.1.0, smarc_8mq_lf_v2020.04, ti-u-boot-2015.07, v2015.07-smarct33, v2015.07-smarct33-emmc, v2015.07-smarct4x, v2016.05-dlt, v2016.05-smarct3x, v2016.05-smarct3x-emmc, v2016.05-smarct4x, v2017.01-smarct3x, v2017.01-smarct3x-emmc

mtd: vf610_nfc: use in-band bad block table 

Use in-band bad block table (NAND_BBT_NO_OOB) which allows to
use the full OOB for hardare ECC purposes. Since there is no
ECC correction on the OOB it is also safer to use in-band area
to store the bad block table marker.

Signed-off-by: Stefan Agner <stefan@agner.ch>

Showing 1 changed file with 2 additions and 27 deletions Side-by-side Diff

drivers/mtd/nand/vf610_nfc.c
Diff comments   View file @ 84d656a
... ... @@ -155,29 +155,6 @@
155 155 #define mtd_to_nfc(_mtd) \
156 156 (struct vf610_nfc *)((struct nand_chip *)_mtd->priv)->priv
157 157  
158   -static u8 bbt_pattern[] = {'B', 'b', 't', '0' };
159   -static u8 mirror_pattern[] = {'1', 't', 'b', 'B' };
160   -
161   -static struct nand_bbt_descr bbt_main_descr = {
162   - .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE |
163   - NAND_BBT_2BIT | NAND_BBT_VERSION,
164   - .offs = 11,
165   - .len = 4,
166   - .veroffs = 15,
167   - .maxblocks = 4,
168   - .pattern = bbt_pattern,
169   -};
170   -
171   -static struct nand_bbt_descr bbt_mirror_descr = {
172   - .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE |
173   - NAND_BBT_2BIT | NAND_BBT_VERSION,
174   - .offs = 11,
175   - .len = 4,
176   - .veroffs = 15,
177   - .maxblocks = 4,
178   - .pattern = mirror_pattern,
179   -};
180   -
181 158 static struct nand_ecclayout vf610_nfc_ecc45 = {
182 159 .eccbytes = 45,
183 160 .eccpos = {19, 20, 21, 22, 23,
... ... @@ -624,10 +601,8 @@
624 601  
625 602 /* Bad block options. */
626 603 if (cfg.flash_bbt)
627   - chip->bbt_options = NAND_BBT_USE_FLASH | NAND_BBT_CREATE;
628   -
629   - chip->bbt_td = &bbt_main_descr;
630   - chip->bbt_md = &bbt_mirror_descr;
  604 + chip->bbt_options = NAND_BBT_USE_FLASH | NAND_BBT_NO_OOB |
  605 + NAND_BBT_CREATE;
631 606  
632 607 /* Set configuration register. */
633 608 vf610_nfc_clear(mtd, NFC_FLASH_CONFIG, CONFIG_ADDR_AUTO_INCR_BIT);